Optical

//ˈɒptɪkəl// adj, noun

Definitions

Adjective
  1. 1
    Of or relating to sight; visual.

    "Strabismus is an optical defect."

  2. 2
    Designed to assist or enhance sight

    "A microscope is an optical instrument."

  3. 3
    Of or relating to optics.

    "Refraction is an optical effect."

  4. 4
    Of or relating to visible light.

    "Optical telescopes don't work when it is cloudy."

  5. 5
    Incorporating light-sensitive devices.

    "An optical switch opens the door automatically."

Adjective
  1. 1
    of or relating to or involving light or optics wordnet
  2. 2
    relating to or using sight wordnet
  3. 3
    of or relating to or resembling the eye wordnet
Noun
  1. 1
    Any special effect requiring laboratory work on the film.

    "It is a glossy film with gross, opulent opticals and little comic, or any, relief; it has the jaundiced complexion of an early 60s underground film, which it is; it is ponderous, Wagnerian, and feels about five hours long (its running time is about an hour)."

Etymology

Etymology 1

From optic + -al.

Etymology 2

From optic + -al.

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